Next Generation Optical Software: Technology Trends | Webinars

Tue Jan 18, 2022 10:00 AM EST


Physical optics calculation software typically provides a single solver program for Maxwell’s equations. Field solvers such as Finite Difference Time Domain (FDTD) or Finite Element Method (FEM) allow a user to model and design specific micro- and nano-optical structures, but in themselves these solvers do not provide a realistic system model. This is due to their high numerical effort, which can lead to an increase in the size of the system. Therefore, ray optics software is the typical choice for system modelers.

But ray tracing is not sufficient for the calculation of point spread function (PSF) and modulation transfer function (MTF) in a lens system. To compensate, developers of ray tracing software may include notions of physical optics in their model building programs. In this way, the core technology applied throughout the ray tracing software deals with the connection between the rays and the physical optics at the exit pupil of a model optical system. Developments in modern optics and photonics have increased the demand for further inclusion of physical optics in systems modeling. An example of a demanding system is that of AR / MR glasses, which include micro- and nano-optics, partially coherent sources, or a combination of all.

Similar to solving PSF and MTF in ray tracing software, adding physical optics considerations to any modeling program is often approached by asking how physical optics should be incorporated into ray optics. . But there are pitfalls to this approach. One problem is that it assumes that it is known in advance where in an optical system physical optical processing is needed – this introduces a risk of missing unforeseen and potentially significant physical effects. But the main problem is a problem of principle: light is represented by rays in ray optics and by electromagnetic fields in physical optics. In general, spokes do not include all of the field information. For this reason, switching between optical and physical calculations is not appropriate or practical for successful modeling.

Frank Wyrowski of LightTrans International presents an alternative approach in this webinar: From the more general model of physical optics, how to identify and apply the generalization of ray optics within the framework of physical optics? Wyrowski presents the resulting modeling software from the answer to this question, showing how modeling of physical optics can be made more practical and useful for advancing technologies.

In the photo: simulation of a waveguide with complex 2D exit pupil expansion. Courtesy of Frank Wyrowski.

Who should be present:

R&D engineers and scientists working with optical system modeling software and interested in meeting the challenges of integrating physical optics with ray optics simulations. This webinar provides a nuanced perspective on optical modeling parameters, illustrated by sample applications that include fiber coupling, interferometry, AR / MR glasses, and lidar.

About the presenter:

Frank Wyrowski is CEO of LightTrans International GmbH. He co-founded the company in 1999 as well as Wyrowski Photonics in 2014. Since 1996 he has also worked as a professor of technical physics at the head of the applied computational optics group at Friedrich Schiller University in Jena. His work as an entrepreneur, researcher and educator is dedicated to the development of rapid resolution techniques for physical optics, as well as software to meet the growing demand to complement ray optics in modern design of the optics and photonics. His current research and development areas include light guides for augmented reality and virtual reality, light shaping, microscopy, interferometry, fiber coupling, diffractive and meta lenses, optical elements diffractive elements (DOE), holographic optical elements (HOE), free form, micro-lens arrays and physics theory of optics.

About the sponsors:
LightTrans International GmbH develops and offers fast physical optics software for optical systems that include macro-, micro- and nano-structured components. By connecting a variety of propagation techniques, LightTrans provides high-speed physical optical modeling that enables the analysis and design of optical systems beyond ray tracing.

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